Over-the-counter medications are readily available and convenient. However, intake may result in cutaneous adverse reactions such as acute generalized exanthematous pustulosis (AGEP). The need to differentiate the disease to similar pustular diseases such as pustular psoriasis and subcorneal pustular dermatosis is essential, to give way to proper patient management. Its appearance with psoriasis vulgaris is uncommon.

We highlight a 36-year-old Filipino female with a known case of psoriasis vulgaris, undergoing phototherapy with good compliance and response, who took one dose of mefenamic acid due to headache. Three days after, she presented with multiple, pin-point pustules surrounded by multiple, erythematous plaques and desquamative scales over the body, including non-psoriatic areas.

A skin punch biopsy on the left arm revealed that the epidermis shows a subcorneal pustule with spongiosis and focal vacuolar alteration at the base. The dermis showed edema and was infiltrated mainly of lymphohistocytes and eosinophils, consistent with acute generalized exanthematous pustulosis.

Treatment with cyclosporine of 3.0 mkd was given, with topical corticosteroids of clobetasol 0.05% ointment mixed with petroleum jelly. Gradual tapering every two weeks was done, with 90% improvement. Blood pressure monitoring was done while on treatment. No recurrence of pustular lesions seen thereafter.

Apart from NSAIDs, beta-lactams, and beta-blockers are common causes of AGEP. There have been few published case reports about concomitant psoriasis vulgaris and acute generalized exanthematous pustulosis. To ascertain the diagnosis among subcorneal pustular dermatosis, pustular psoriasis, acute generalized exanthematous pustulosis, clinical and histopathologic correlation should be done.

Acute generalized exanthematous pustulosis (AGEP) and Stevens-Johnson Syndrome (SJS) are uncommon, severe cutaneous drug eruptions with distinct clinical and histopathological features. AGEP-SJS overlap is a rare and complicated cutaneous drug eruption. Neutrophilia, leukocytosis, and elevated liver enzymes can be seen in these patients. Currently, there are no available dermoscopic studies on AGEP overlapping SJS. The pathophysiology of overlapping drug reaction are mediated by T cells and delayed-type hypersensitivity. Management includes removal of offending drug and giving supportive measures like pain management, moist dressing and fluids.

People living with human immunodeficiency virus (PLHIV) are 100 times more at risk for cutaneous adverse drug reactions (ADRs). Acute generalized exanthematous pustulosis (AGEP) is a rare and severe cutaneous ADR associated with systemic involvement in 20% of cases.

This is a case of a 30-year-old male living with HIV admitted for acute gastroenteritis. Eight hours after initiation of intravenous ciprofloxacin and metronidazole, the onset of generalized monomorphic asymptomatic pustules was observed with associated weakness, fever, thrombocytosis, and neutrophilia. Ciprofloxacin was shifted to piperacillin-tazobactam. The patient was managed with intravenous hydrocortisone and oral cetirizine. Thereafter, the lesions remained stable in size and no new lesions occurred. The patient was referred to the dermatology service for further evaluation and management. A diagnostic workup was done which revealed subcorneal pustular dermatitis on histopathology, no fungal elements on periodic acid-Schiff stain, negative Gram stain, and no growth on culture. This case was diagnosed as AGEP secondary to ciprofloxacin. Dermatologic management consisted of oral antihistamines and topical steroids. The patient experienced generalized desquamation and gradual resolution of pustules over a two-week period with the eventual appearance of normal skin.

Ciprofloxacin is commonly used to treat opportunistic infections in the setting of HIV but it has never been documented to cause AGEP in such settings. Decreased CD4+ T-cell count (460 cells/µL) are factors associated with drug eruptions. Despite its toxic presentation, AGEP has a good prognosis with prompt withdrawal of the offending drug and supportive management.

BACKGROUND: Severe cutaneous adverse reactions (SCAR) to drugs are a crucial public health issue and the use of systemic corticosteroids in SCAR has been controversial. OBJECTIVE: To analyze clinical features, causative drugs, treatment, outcomes, and prognostic factors of SCAR in the case-series of 173 patients, and add more information to the debate of using systemic corticosteroids in SCAR management. METHODS: A retrospective study of 173 SCAR patients diagnosed with drug reaction with eosinophilia and systemic symptoms (DRESS), Stevens-Johnson syndrome (SJS)/toxic epidermal necrolysis (TEN) or acute generalized exanthematous pustulosis (AGEP) at a tertiary care institution in China between January 2014 and December 2017 was conducted. RESULTS: Of 173 patients, allopurinol, carbamazepine, and antibiotics are the most frequently implicated drugs for DRESS (40.4%), SJS/TEN (26.0%), and AGEP (40.0%) respectively. Moreover, there is a strongly negative correlation between early corticosteroids use and the progression (p=0.000) and severity (p=0.01) of skin lesions. However, there is no association between early corticosteroids use and the mortality of SCAR (odds ratio: 1.01, 95% confidence interval: 0.95~1.08). In addition, lymphadenopathy, eosinophilia, and interval from onset to corticosteroids treatment were correlated with SCAR prognosis. CONCLUSION: Prompt short-course systemic corticosteroids use is associated with early-stage skin lesions remission without influencing the disease mortality. Lymphadenopathy and eosinophilia were the independent poor prognostic factors of SCAR.
Acute Generalized Exanthematous Pustulosis ; Adrenal Cortex Hormones ; Allopurinol ; Anti-Bacterial Agents ; Carbamazepine ; China ; Cicatrix ; Drug Hypersensitivity Syndrome ; Eosinophilia ; Humans ; Lymphatic Diseases ; Mortality ; Prognosis ; Public Health ; Retrospective Studies ; Skin ; Stevens-Johnson Syndrome ; Tertiary Healthcare

BACKGROUND: Acute generalized exanthematous pustulosis (AGEP) is typically a medication-induced acute febrile eruption. Few large-scale studies have reported clinical data regarding AGEP in Korea. OBJECTIVE: This study analyzed the clinical and histopathological features of AGEP in Koreans to identify recent trends in this context. METHODS: This study retrospectively reviewed 31 patients with AGEP. Age, sex, clinical features, etiologies, laboratory findings, histopathological features, and treatment outcomes were obtained from patients' medical records and photographs. RESULTS: The mean age of onset was 43.6 years, and the male:female ratio was 2.1:1. All patients showed non-follicular tiny pustules and erythema. Fever was reported in 13 patients and neutrophilia in 17 patients. Medications were considered the most common etiological contributors. Twenty patients showed drug-induced AGEP, and 11 of 20 patients showed antibiotic-induced AGEP. Serum C-reactive protein and lactate dehydrogenase levels increased in 93.8% and 77.8% of the patients, respectively. Histopathologically, all patients showed subcorneal or intraepidermal pustules, followed by exocytosis and neutrophilic dermal infiltrate. Twenty-five patients improved within a mean period of 7.5 days after the onset of the skin rash. The percentage of women in the drug-induced AGEP group was significantly higher than that in the non-drug-induced AGEP group. CONCLUSION: This report describes a large-scale study that analyzed the clinical and histopathological features of AGEP in Koreans and seems to accurately reflect the recent trends in this context. Clinically, it is important to note that the percentage of women in the drug-induced AGEP group was higher than that in groups showing other etiologies of AGEP.
Acute Generalized Exanthematous Pustulosis* ; Age of Onset ; C-Reactive Protein ; Erythema ; Exanthema ; Exocytosis ; Female ; Fever ; Humans ; Korea ; L-Lactate Dehydrogenase ; Medical Records ; Neutrophils ; Retrospective Studies

Acute generalized exanthematous pustulosis (AGEP) is rarely caused by radiocontrast media (RCM). The role of skin tests for the diagnosis and evaluation of cross-reactivity in a delayed type of RCM-induced hypersensitivity have yet to be determined. Here, we report a case of iodixanol-induced AGEP where we safely administered alternative RCM using patch tests. A 44-year-old woman had coronary artery angiography (CAG) for the evaluation of ischemic heart disease. She was on regular hemodialysis because of end-stage renal disease. She was given iodixanol (Visipaque) during CAG. Approximately 1 day after CAG, she developed AGEP. The patient was rehospitalized for CAG again after 1 year. We performed skin tests to choose safe alternative RCM. Intradermal tests with iodixanol, iohexol (Bonorex) and Iopamidol (Pamiray) showed negative responses. Patch tests showed a positive response to iodixanol, equivocal to iohexol, and negative to Iopamidol. We finally chose Iopamidol and performed CAG successfully without any adverse reaction. Patch tests may be a useful tool for the diagnosis and choice of safe alternatives in RCM-induced delayed-type hypersensitivity reactions such as AGEP.
Acute Generalized Exanthematous Pustulosis* ; Adult ; Angiography ; Contrast Media* ; Coronary Vessels ; Diagnosis ; Female ; Humans ; Hypersensitivity ; Intradermal Tests ; Iohexol ; Iopamidol ; Kidney Failure, Chronic ; Myocardial Ischemia ; Patch Tests* ; Renal Dialysis ; Skin Tests

Acute generalized exanthematous pustulosis (AGEP) is a severe and rare disease usually related to drug eruption. AGEP is induced by drugs in over 90% of cases with antibiotics being the most common. It is characterized by a fever and a pustular eruption on erythematous skin with acute onset and without follicular localization. Acetaminophen is commonly used as an antipyretic and analgesic. Acetaminophen has been reported to be an uncommon cause of AGEP. We report a 79-year-old woman presenting with fever and erythematous maculopapular eruptions on the trunk with sterile pustules arising upon the use of acetaminophen for back pain. Leukocytosis and elevated C-reactive protein levels were noted on the laboratory examination. The histopathological examination of the skin biopsy specimen showed intraepidermal pustule formation with superficial perivascular lymphocytic infiltration, including eosinophils, and extensive red blood cell extravasation. The lesions were resolved with discontinuation of acetaminophen and use of systemic corticosteroid. We report a case of AGEP probably caused by acetaminophen.
Acetaminophen* ; Acute Generalized Exanthematous Pustulosis* ; Aged ; Anti-Bacterial Agents ; Back Pain ; Biopsy ; C-Reactive Protein ; Drug Eruptions ; Eosinophils ; Erythrocytes ; Female ; Fever ; Humans ; Leukocytosis ; Rare Diseases ; Skin

BACKGROUND: Cutaneous pustular disorders include generalized pustular psoriasis (GPP) and acute generalized exanthematous pustulosis (AGEP). OBJECTIVE: To identify differences between GPP and AGEP, here we immunohistochemically evaluated interleukin (IL)-36 and the IL-23/Th17 axis. METHODS: This retrospective comparative immunohistochemical study was completed using 11 biopsies of 11 cases of GPP and 11 biopsies of 11 cases of AGEP. Through staining with the anti-IL-36-alpha (IL-36α), anti-IL-36 receptor antagonist (IL-36Ra), anti-nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB), anti-IL-23, anti-IL-17, and anti-IL-8 antibodies, main expression location and intensity were visualized in the epidermis and dermis. RESULTS: In both diseases, diffuse IL-36α expression was observed in the epidermis. IL-36Ra expression was observed in the dermal perivascular area as well as in the epidermis. NF-κB expression was observed in the epidermis and perivascular dermal area. Diffuse IL-23 and IL-17 expression was seen in the whole epidermis and the perivascular dermal area. IL-8 was expressed in the subcorneal pustules and parakeratotic area. Contrary to other cytokines, IL-23 expression in the epidermis of patients with GPP was more intense than only that in patients with AGEP. CONCLUSION: Common pathomechanisms might exist in the development of GPP and AGEP based on these immunohistochemical results, but further studies are needed.
Acute Generalized Exanthematous Pustulosis* ; Antibodies ; B-Lymphocytes ; Biopsy ; Cytokines ; Dermis ; Epidermis ; Humans ; Immunohistochemistry ; Interleukin-17 ; Interleukin-23 ; Interleukin-8 ; Interleukins ; Psoriasis* ; Retrospective Studies

Acute generalized exanthematous pustulosis (AGEP) is a rare disorder characterized by acute onset of erythematous and edematous eruptions with sterile pustules, accompanied by fever, and a self-limiting condition thought to be caused by drugs, in particular, antibiotics. Drug-related rash with eosinophilia and systemic symptoms (DRESS) syndrome is a severe adverse drug-induced reaction, characterized by a generalized skin rash associated with hypereosinophilia, lymphocytosis, and internal organ involvement. These reactions differ in causative agents, as well as clinical presentation, prognosis, and treatment. Therefore, appropriate diagnostic measures should be rapidly undertaken. Herein, we described a patient who developed overlapping features of hypersensitivity syndromes, AGEP and DRESS, with the use of piperacillin and the beta-lactamase inhibitor sodium tazobactam. Coexistence of AGEP and DRESS in the same patient is quite rare. To the best of our knowledge, there have been no previous reports on the coexistence of AGEP and DRESS associated with piperacillin/tazobactam.
Acute Generalized Exanthematous Pustulosis* ; Anti-Bacterial Agents ; beta-Lactamases ; Drug Hypersensitivity Syndrome ; Eosinophilia* ; Exanthema* ; Fever ; Humans ; Hypersensitivity* ; Lymphocytosis ; Piperacillin ; Prognosis ; Sodium

No abstract available.
Acute Generalized Exanthematous Pustulosis* ; Chickens* ; Eating* ; Hemodynamics* ; Lacquer*